This work offers static and dynamic subtraction questions for independent work in math.
Color-coded according to the Montessori math hierarchical colors. There is a 'd' (dynamic) or 's' (static) printed in the bottom corner of each card. Cards can be printed and folded so that the answers are on the back of the questions.
Cards are approx. 2½" x 3¾".
This file is in PDF format.